Transport in plants

Front

What are the factors affecting the rate of diffusion?

Back

1. Gradient of concentration 2. Permeability of the membrane 3. Temperature 4. Pressure 5. Size of diffusing material

Front

What is active transport?

Back

Active transport is the process of moving molecules from a low concentration to a high concentration, requiring energy (ATP).

Front

What is the direction of transport for organic and inorganic materials in plants?

Back

Transport of organic and inorganic materials is multidirectional.

Front

What characterizes diffusion?

Back

Diffusion is a passive and slow process that does not require energy, occurring from a region of higher concentration to a region of lower concentration.

Front

What happens to the rate of glucose transport when the concentration exceeds 10M?

Back

The rate of glucose transport no longer increases, indicating a saturation point.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of transporting molecules across a membrane via a carrier protein, without the use of energy.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.

Front

What role does ATP play in active transport?

Back

ATP provides the energy required for active transport to move molecules from low to high concentration.

Front

What is the significance of concentration gradients in diffusion?

Back

Concentration gradients drive the movement of molecules from areas of high concentration to areas of low concentration.

Front

How does temperature affect the rate of diffusion?

Back

Higher temperatures increase the kinetic energy of molecules, leading to a faster rate of diffusion.